Territory



(No Model.) 6 Sheets-Sheet 1.

J. M. BROWNING.

MAGAZINE FIREARM.

Patented Jan. 7, 1896.

l dmmwa r? m iw 6 Sheets-Sheet 2.

(No Model.)

J. M. BROWNING. MAGAZINE FIREARM.

No. 552,864. Patented Jan. 7, 1896.

UTHQWASNINGTONJQ (No Mbdel.)

6 Sheets-Sheet 3. J. M. BROWNING.

MAGAZINE FIREARM.

Patented Jan. '7, 1896.

MN k A ANDREW u GRMIAM PHUTU-LI1HO WASNINGTDNVDC (No Model.) 6Sheets-Sheet 4. J. M. BROWNING. MAGAZINE FIREARM.

Patented Jan. 7; 1896.

I I I" PHOYO-UTMD WASHINGTON. 0.5.

( '6 Sheets-Sheet; 5.' J. M. BROWNING. MAGAZINE FIREARM.

No. 552,864. Patented Jan. 7, 1896.

@ FWW AN DREW ILGMMM, mmo-u'muwAsmu 670 N. D C.

(No Model.) 6 Sheets-Sheet 6. J. M. BROWNING. MAGAZINE FIREARM.

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\Nmwrw n GRAHAM PhGTO \ITHOWASNINGYOR 0C UNITED STATES PATENT OFFICE.

JOHN M. BROlVN ING, OF OGDEN, UTAH TERRT'IOR'Y.

MAGAZINE-FIREARM.

SPECIFICATION forming part of Letters Patent No. 552,864, dated January7', 1896.

Application filed November 19, 1894. Serial No. 529,258. (No model) Toall whom it nmy concern:

Be it known that I, J on M. BROWNING, o

Ogden, in the county of Weber and Territory of Utah, have invented a newImprovement in Breech-Loading Magazine-Firearms; and I do hereby declarethe following, when taken in connection with the accompanying drawingsand the letters of reference marked thereon, to be a full, clear, andexact description of the same, and which said drawings constitute partof this specification, and represent, in'

Figure 1, a broken view in side elevation of the rightside of an armconstructed in accordance with my invention; Fig. 2, a partial view ofthe left side of the arm, showing the clean ance-opening formed in theframe to permit the breech-bolt to be moved into its closed position infront of the locking-abutment formed therein; Fig. 3, a broken plan viewshowing the connection of the forward end of the action-bar with thewearing-sleeve or bushing located in the rear end of the slidingsupporting-handle which is mounted on the magazine; Fig. 4, a brokenview of the gun in vertical longitudinal section, showing the parts intheir closed positions; Fig. 5, a corresponding view showing the partsin their open positions; Fig. 6, a view in vertical transverse sectionon the line a b of Fig. 8, showing the frame, slide, breech-bolt, andfiring-pin; Fig. 7, a broken 'view of the arm in horizontalsection,lookingdown upon the breech-bolt,which is in its closed andlocked position; Fig. 8, a corresponding view showing the breech-bolt inits closed position but unlocked; Fig. 9, a detached view in insideelevation of the breech-bolt slide and the action-bar; Fig. 10,

I a reverse plan view of the breech-bolt slide,

action-bar, and breech-bolt; Fig. 11, a view in vertical transversesection on the line (l of the preceding figure; Fig. 12, a detached viewof the breech-bolt in elevation, looking at the right side thereof; Fig.13, a corresponding view of the breech-bolt looking at the left sidethereof; Fig. li, a corresponding view of the bolt in front elevation;Fig. 15, a detached plan view of the firing-pin; Fig. 1G, a similar viewof the firing-pin in side elevation; Fig. 17, a view of the firing-pinin transverse section on the line cf of Fig.

Fig. 18, a detached plan view of the carrier; Fig. 19, a. detachedbroken plan view of the. forward end of the trigger-plate; Fig. 20, abroken view in side elevation showing the pivotal connection of theforward end of the magazine with the gun-barrel and the tapered recesslocated in the forward end of the frame to receive the beveled headlocated at the free rear end of the magazine; Fi 21, a reverse plan viewof the parts shown in the preceding figure; Fig. 22,2. view in verticaltransverse section on the line g h of Fig. 1; Fig. 23, a

broken View in horizontal longitudinal section on the line ij of Fig. 1,through the frame, magazine, and the action-bar, showing thecartridge-stop in its retired position, which it takes when theaction-bar is moved forward into its closed position; Fig. 24, a similarbut less comprehensive View showing the cartridge-stop thrown into itsoperative position, which it assumes very soon after the actionbarbegins its rearward movement for opening the gun; Fig. 25, an enlargeddetached reverse plan view in horizontal longitudinal section of thehinged cartridge-stop, the joint of which is shown in section.

My invention relates to an improvement in breech-loading firearms, theobject being to produce a compact, reliable, safe, durable and effectivearm composed of comparatively few parts and not liable to derangement.

With these ends in view my invention consists in a breech-loadingmagazine-firearm having a longitudinally-movable breech-bolt slide, anda breech-bolt actuated by the said slide in longitudinal and lateralmovement, its rear end being moved laterally for locking it in itsclosed position and for unlocking it therefrom, and its forward endbeing moved laterally for coupling it with and uncoupling it from theforward end of the said slide, which has longitudinal movementindependent of it.

My invention further consists in the employment of a firing-pin mountedin a longitudinally-movable breech-bolt for connecting the same forlateral movement with the rear end of a longitudinally-nlovablebreech-bolt slide.

My invention further consists in a breechbolt slide provided at its rearend with an extension which engages with the rear end of alaterally-movable breech-bolt for pushing the same into its lockedposition.

My invention further consists in a breechbolt constructed at its forwardend with a head which coacts with fixed points in the frame for movingthe said head and hence the bolt to the right and to the left forcoupling the bolt with and uncoupling it from the 1011-gitudinally-movable slide by means of which it is moved back and fort-h.

My invention further consists in a pivotal bell-crank lever locatedbeneath a carrier and extending upward through the same into position tobe engaged by a longitudinally-movable breech-bolt for .operating it andlifting the carrier.

My invention further consists in a pivotal fender made independent ofthe carrier, and interposed between the same and an ejectionopeningformed in one of the side walls of the frame. My invention furtherconsists in a liftinglever pivotally mounted in the carrier and engagingwith aportion of the frame and with the forward end of the trigger-platefor being operated to lift the cartridges as the carrier is lifted.

My invention further consists in a cartridge-stop which is positivelyoperated inward and outward through the medium of the action-bar.

My invention further consists in a breechloading magazine-firearm havingcertain details of construction and combinations of parts, as will behereinafter described, and pointed out in the claims.

In carrying out my invention, as herein shown, I employ a breech-bolt A,located in the frame B of the gun and constructed and arranged so as tobe not only reciprocated longitudinally back and forth the rein, butalso so as to be laterally movable therein, its rear end having morerange of lateral movement than its forward end. By the term frameas usedabove I mean to include all of the gun-frame except the upper tang B andthe lower tang .B thereof. The said breech-bolt is partially supportedby the frame and partially supported by a breech-bolt slide 0, by meansof which it is longitudinally reciproeated and through and by which itis moved laterally. The said breech-bolt slide is mounted in the frame,in which it is confined to longitudinal movement, being provided uponits upper and lower faces with longitudinal ribs 0 and 0', Figs. 6 and11, which take into suitable grooves formed in the frame for theirreception. To adapt the frame to receive the breech-bolt slide itsright-hand side wall is cut away to form a longitudinal slot C, Fig. 1,which opens laterally into the chamber formed in the frame.

An action-bar 0, connected at its rear end with the forward end of thebreech-bolt slide, is provided upon the inner face of its forward endwith a vertically-arranged dovetail rib 0 Fig. 3, taking into a dovetailgroove D, formed in a lateral enlargement of the inner end of a metalbushing or wearing-sleeve D, secured within the inner end of a slidingsupporting-handle D arranged to slide back and forth upon the tubularmagazine D To operate the breech-bolt, the said handle is grasped andmoved back and forth upon the magazine, whereby the breech-bolt slide 0,and hence the breech-bolt A, are actuated in longitudinal movementthrough the medium of the said action-bar connecting the breechboltslide and the sliding supporting-handle.

The firing-pin E is employed for loosely coupling the breech-bolt andslide together, the said pin being thereto furnished 'at its rear endwith a lateral flange E, extending to the right and entering a deephorizontal slot C formed in the inner face of the said slide, Figs. 6, 7and '8, which has an inward extension'C formed at its rear end, throughwhich the said slot extends.

The firing-pin, it will be observed by reference to Figs. 7 and 8 of thedrawings, is not located parallel with the longitudinal axis of thebreech-bolt, but is inclined to the said axis, its flange Eemerginglaterally from the rear portion of the breechb0lt, so as to enter theslot 0 in the said breech-bolt slide, and the rear end of its flangeprojecting beyond the rear end of the breech-bolt so as to enter 7 thatportion of the said slot 0 contained in the said extension 0 of thebreech-bolt slide.

The firing-pin and breech-bolt are pivotally connected by means of averticallyarranged coupling-pin E located in the bolt, and passingthrough an elongated slot E formed in the flange E of the pin, which istherefore free to move independently of the bolt within the limits ofthe length of the said slot E while the firing-pin and breech-bolt slideare connected by means of a verticallyarranged operating-stud e, locatedin the extreme rear end of the said flange E extending above and belowthe upper and lower faces thereof, and taking into two correspondingoppositely-arranged grooves (J C forwardly inclined with respect to thesaid slide, 10- ca d in the lateral extension 0, and leadingt of theupper and lower walls of the slot L, "The inner end of the saidextension is shapeu to form an operating-bevel C, Fig. 10, which coactswith the beveled inner corner a of the rear end of the breech-bolt toforce the same from right to left for looking it in its closed position.The said end of the extension is also shaped to form an inclined seat 0upon which the said corner of the breech-bolt rests when the same isboth closed and locked. The breech-bolt is thus moved longitudinallyback and forth by the breech-bolt slide, while its rear end is movedfrom right to left directly by the said slide and from left to right bythe firing-pin, which is thereto operated by the said slide. The rearend of the bolt also has a locking-face a,

which, when the said end of the bolt is swung from right to left, coactswith a locking-abutment B, formed in the left-hand side of the rear endof the frame, also having a clearance-opening B formed in it at a pointdi' rectly in front of the said abutment, as clearly shown in Figs. 2, 7and 8.

At its forward end the breech-bolt is enlarged to form a head A, whichthough but slightly narrower in width than the width of the upperportion of the receiver-chamber B is still enough narrower than the sameto admit of a slight lateral movement of the said head, and hence theforward end of the bolt therein. To receive the right-hand side. of thesaid head the forward end of the breechbolt slide is constructed with arecess E, in which the said end of the bolt is in part supported. Theforward end of thebolt is moved from left to right by means of ahorizontally arranged outwardly projecting operatingshoulder A locatedupon the lefthand side of the said head and coacting with asimilarly-arranged long guide-rib B projecting inwardly into thereceiver-chamber B from the left-hand wall of the frame, the said ribbeing cut away at its forward end to form a clearance-space b for theshoulder A to enter and having its said endbeveled at b, as clearlyshown in Figs. 7 and 8. The said head, and hence the forward end of thebolt, is moved from right to left just as the bolt is passing into itsfully-closed position by means of a bevel A formed at the upperright-hand corner of the said head, as shown in Fig. 14, and by means ofa coacting bevel 13 formed in the frame at the upper right-hand cornerof the forward end of the receiver-chamber B as shown in Fig. 7. Thesaid head is moved from right to left and left to right by means of theinstrumentalities described, for the purpose of disconnecting theforward end of the breech-bolt from and connecting the said end of thebolt with the forward end of the breech-bolt slide. For the purpose ofconnecting the forward end of the breech-bolt with the forward end ofthe breech'bolt slide a coupling-shoulder A is formed in the righthandside of the head A of the bolt by notching the same, as clearly shown inFig. 7, the said shoulder being engaged by the inner corner c, Fig. 8,of the extreme forward end of the breech-bolt slide.

In illustration of the operation of the breechbolt slide and breech-boltlet it be supposed that both are in their closed and locked positions.Now when the said slide begins to move back, the inclined forward wallsof the grooves G C in the extension C at its rear end will engage withthe vertically-arranged operating-stud e, located in the flange'E of thefiring-pin E, and draw the same back without stirring the bolt until theforward end wall of the elongated slot E in the flange E of thefiring-pin brings up against the coupling-pin E? in the bolt, the rearend of which from this moment begins to move from left to right underthe drawing action of the firing-pin,which is correspondingly moved bythe drawing action of the forwardly-inclined forward walls of the saidgrooves C C before mentioned. The breech-bolt is thus unlocked by theswinging of the locking-face a at its rear end away from thelocking-abutment B, formed in the left-hand side of the rear end of theframe. The breech-bolt having thus been moved at its rear end from leftto right and unlocked is now free to be moved back into its openposition by the breech-bolt slide of the straight longitudinal movementwhereof it then partakes. Just as soon as the slide begins to move back,the bevel A formed on the right-hand side of the head A located at theforward end of the bolt clears the bevel B formed on the right-hand sideof the forward end of the receiver-chamber B As soon as these bevelshave cleared each other the rear end of the operating-shoulder A locatedon the lefthand side of the said head, engages with the bevel 1) formedat the forward end of the guide-rib I? projecting into the left-handside of the said receiver-chamber. The breechbolt continuing tomove'rearward, the said shoulder rides upon the said bevel, whereby theforward end of the bolt is shifted from left to right, whereby itscoupling-shoulder A is moved directly in front of the inner corner c ofthe extreme forward end of the breechbolt slide. The bolt now movesrearward with the said slide, its forward end being maintained in itsdeflection to the right by means of the guide-rib B acting on theshoulder A The bolt and slide thus move into their fully-open positions.At the beginning of the closing movement of the bolt and slide thelatter moves forward alone at first, until the corner 0 of its forwardend abuts against the coupling-shoulder A before mentioned, after whichthe bolt and slide move steadily forward until the bevel A of the boltengages with the bevel B of the frame B, with the effect of shifting theforward end of the bolt from right to left, which is permitted by theclearance-space I) provided for the shoulder A in front of the guide-ribB the forward end of which the said shoulder has by this time passed.The described lateral movement of the forward end of the bolt from rightto left is just sufiicient to clear the couplingshoulder A of the boltfrom the forward end of the breech-bolt slide, which has now moved thebolt forward as far as it will go. crating-bevel C located at the baseof the for ward end of the extension 0 of the slide now engages with thebeveled inner corner a of the rear end of the breech-bolt and moves thesame laterally from right to left, whereby the locking-face a. at thesaid end of the breechbolt is swung in front of the locking-abutment Bof the frame B and a portion of the bolt swung into the clearance opening B formed in the said frame B in front of the said abutment. Then, justas the bolt is coming into its fullyclosed position, the operating-bevelQ passes the inner corner (I of the bolt and the inclined The opseatformed upon the inner end of the said extension is presented forengagement with the bolt, as shown in Fig. 7, and prevents the rear endof the bolt from moving from right to left, and hence out of its lockedposition. It will thus be seen that the bolt has longitudinal movementwith the slide and that its rear end has lateral movement independentthereof for locking it in its closed position in the frame, and that itsforward end has lateral movement independent of its rear end forcoupling it with and uncoupling it from the forward end of the slide.

The head A at the forward end of the breechbolt slide is furnished withan extractor F, located at the right, and an extractor F, located at theleft, the latter co-operating with an abutment-block F against which theheads of the cartridgesabut, and which projects into thereceiver-chamber B from the left-hand wall thereof, the said blockvirtually forming an ejector against which the cartridges are impingedas the breech-bolt is retracted with a cartridge in the grip of theextractors. The clearance-slot F formed in the left-hand side of thebolt is provided for clearing the abutment or ejector-block F when thebreech-bolt is in its closed and locked position. The head of thebreech-bolt is constructed on its lefthand side with a clearance-slot f,Fig. 13, for clearing the abutment or ejector-block F when thebreech-bolt is drawn back into its open position. I may mention herethat the extractors F and F may be of any approved construction. Theforward end of the breechbolt is also provided with an operating-fingerA depending from its head A, having its rear end undercut, as at (1 andbeveled, as at a The function of this finger will be set forth later on.

The carrier 11 of my improved gun is bifurcated at its rear end, Fig.18, to receive the shank of the hammer I and to embrace the upright I ofthe trigger-plate I", Fig. 19, the carrier and hammer being hung upon apivot H, passing through the said bifurcated rear end of the carrier,through the shank of the hammer, and through the said upright I of thetrigger-plate 1 the forward end of which fits into the lower face of therear end of the frame. The said carrier has a long clearance-opening HFig. 18; formed in it to the rear of its longitudinal center for theupward passage through it of the upper arm J of a bell-crank or elbowlever, the lower arm J of which is located in alongitudinal groove 1Fig. 19, formed in the trigger-plate, and engages with the under face ofa web or bridge ll, located at the rear end of the carrier, as seen inFig. 18. The said bell-crank lever is hung upon a horizontal pivot J 2mounted, as shown in Fig. 19, in the forward end of the trigger-plate.The opening j, Fig. 4, formed in the said bell-crank lever for thereception of the pivot J is enough larger in diameter than the same topermit the lever to tip laterally from left to right against the tensionof the spiral spring J mounted on the pin and interposed between theright-hand face of the lever and the adjacent wall of the recess 1 inthe trigger-plate, as shown in Fig. 19. The said spring is provided forholding thelever in its normal or vertical position, from which it isdeflected from left to right against the tension of the spring to permitthe operating-finger A depending from the head A at the forward end ofthe breech-bolt to push it aside during the rearward movement of thesaid bolt, the left-hand face of the upper end of the upper arm J of thesaid bell-crank lever being beveled, as at j Fig. 19, to coact with thebevel a formed upon the right-hand corner of the rear end of the saiddepending finger, as shown in Fig.10.

\Vhen the breech-bolt moves forward, the square forward end of theoperating-finger A abuts against the square rear edge of the upper arm Jof the said bell-crank lever, which Itwill be understood that thecarrier is lifted as described at the beginning of the forward movementof the breech-bolt, and is maintained in its elevated position until thebreech-bolt has entered the forward end of the cartridge lifted by thecarrier into the gun-barrel, after which the operating-finger A of thebreech-bolt passes forward of and clears the upper arm J of the saidbell-crank lever and thus permits the carrier to drop back into itsdepressed position of readiness to receive another cartridge from themagazine. "When, on the other hand, the breechbolt is moving back intoits open position the bevel a of its depending finger A engages with thebevel j of the upper arm J of the bell-crank lever, which yieldslaterally, tipping from left to right against the tension of the springJ which immediately rights the lever after the said operating-finger haspassed by and to the rear of it and thereafter holds it in its rightedposition, in which the square forward edge of the said finger A engageswith the square rear edge of the said arm, when the breech-bolt is againmoved forward.

For the purpose of preventing the chance escape of the cartridges fromthe ejection-. opening B formed in the right wall of the frame B, whenthe cartridges are being transferred from the magazine to the barrel ofthe gun, and also for assisting in guiding the cartridges into thegun-barrel, I provide the carrier upon its right-hand side with a fenderK,

consisting of a vertically-arranged thin plate of metal rigidly securedat its inner end to a horizontal arbor K, the ends of which are 3'ournaled in the carrier and which is provided with a shortforwardly-projecting finger K which engages with the free inner end of aflat sheet-metal spring K the forward end of which is rigidly secured tothe bottom of the forward end of the carrier, with which the fender isthus pivotally and yieldingly conconnected, so as to stand above thebottom of the forward end thereof. The breech-boltslide gradually closesthe said ejection-opening B from the beginning to the end of its forwardmovement, when it completely closes the said opening, but the carrier islifted at the beginning of the forward movement of the said slide, andhence before the said opening is closed to any extent thereby, whereforethe desirability of using the fender to prevent the accidental escape ofthe cartridges through the said opening before the slide has moved farenough forward to prevent their escape and for assisting in guiding thecartridges into the gun-barrel. The fender has still another function,for its upper edge is engaged by the slide as the same is closed,whereby the slide acts through the medium of the fender and the springthereof in holding the carrier down in proper position and insures itsbeing depressed when the slide is closed.

For the purpose of lifting the rear ends of the cartridges above thefloor of the carrier and thus assisting in their introduction into thegun-barrel, I provide the carrier with a lifting-lever L, which is hungupon the horizontal arbor or pin K of the fender K. The lower portion ofthe rear end of this lever rests upon the forward end of thetriggerplate I while the upper portion of its rear end will engage withthe web B of the frame in such a manner that when the carrier and hencethe lever are lifted, the latter will be turned on its center and itsforward end raised above the floor of the carrier, with the effect oflifting the rear ends of the cartridges. \Vhen in its depressed ornormal position, the forward end of the carrier occupies the opening13", formed in the bottom of the frame to permit the charging of themagazine with cartridges, which are fed into the frame through the saidopening and pushed forward into the rear end of the magazine D one byone by hand, the carrier being forced upward each time so as to permitthe cartridges to pass under it into the rear end of the magazine, whichis furnished with a spring-actuated follower D of any approvedconstruction.

For preventing the cartridges from entering the frame from the magazine,except one at a time as required, I employ a cartridgestop M, Figs. 23,24, and 25, pivotally secured at its rear end to a small plate M,rigidly secured by means of a screw on within the right wall of theframe, which is longitudinally recessed to receive the said stop andplate, which are pivoted together on the knuckle principle, and so as tolimit the inward movement of the stop, which is constructed upon theinner face of its forward end with a stopshoulder m which, when in itsoperating position, engages the heads of the cartridges so as topreventthe same from emerging from the magazine. The outer face of the freeforward end of the stop is furnished with an outwardly-projectingoperating-arm m having a depending finger m the ends of the inner facewhereof are outwardly beveled, as seen in Fig. 25. The said arm projectsoutward through an opening m Figs. 20 and 22, formed in the right wallof the frame and into a long groove m formed in the inner face of theaction-bar C, and curved outwardly at its rear end,as at m, to clear adraw-flange m the outer face of the forward end of which is beveled, asat m and which stands in the plane of the long groove m Supposing theactionbar to be in its fully-closed position, the depending finger m ofthe arm m of the stop will be located in the outwardly-curved portion mof the groove m in the actionbar, as

shown in Fig. 23. Now when the said bar is moved rearward the curvedforward end of the curved portion m of the groove will force the fingerm inward, and hence the arm m whereby the stop will be caused to moveinward into the path of the cartridges, as shown in Fig. 24, and will beretained in this position by the engagement of the said finger with theouter wall of the straight portion of the groove m in the bar. hen, onthe other hand, in the closing movement of the bar the same approachesits closed position, the bevel m at the forward end of the draw-flangeat will engage with the beveled inner face of the rear end of the fingerm and draw the said finger outward into the curved portion of the grooveand outside of the said draw-flange, whereby the stop will be positivelyswung out of the path of the cartridges as they emerge from themagazine. Then when the bar is moved rearward the curved forward end ofthe curved portion m of the groove will force the stop inward again. Itwill thus be seen that I do not depend upon the action of a spring foreither movement of the stop, but that under my construction the stop ispositively moved into its operative position and positively moved intoits retired position, securing perfect reliability in the operation ofthe stop.

For preventing the breech-bolt slide from being deflected up or down Iprovide the frame with a guiding-lug M Figs. 20 and 23, which is locatedon the right hand of the frame B at the extreme forward end thereof andenters the straight portion of the long groove m formed in the innerface of the action-bar, which is thereby guided and prevented from beingmoved up or down, except as it is disengaged from the said lug.

Another feature of my invention is the utilization of the magazine as alever for screwing the barrel into the frame and unscrewing ittherefrom, and also as a wedge for tightening the barrel in the frame B.The magazine D is pivotally connected by means of a screw-stud D with aheavy lug D depending from the lower face of the gun-barrel G. The rearend of the magazine is furnished with a head d, having its rear or outerface beveled or inclined, as at d, the said head being adapted to beentered into a deep recess (P, Fig. 5, formed to receive it in the lowerface of the forward end of the frame and having its rear wall forwardlyinclined. To secure the barrel to the frame the breechbolt is fullyopened and the rear end of the magazine disconnected from the frame, sothat it may be used as a handle-lever. The gun-barrel is then insertedinto the frame with the magazine turned one-quarter to the leftand'turned to the right as far as it will go, using the magazine as alever for turning it. Then the follower D of the magazine ispushed'inward even with the rear end thereof and the magazine closed in,so that its head (I will enter the recess (1 in the frame. Vhen the saidhead has been pushed home in the detailed description.

said recess, the locking-plate D is pushed forward to'engage with thelower edge of the head for holding the magazine in its closed position.The said locking-plate, Figs. 16 and 17, is provided with a centralslot, permitting it to be moved back and forth, and is connected withthe frame by means of a screw (1 To remove the barrel from the frame theplate D is pushed back so as to free the rear end of the magazine, whichis then turned down so as to formalever, by means of which the barrel isturned one-quarter turn from right to left, after which the barrel maybe removed. By the construction just above described the operation ofremoving and applying the barrel is made very easy, while at the sametime the connection of the barrel with the frame is made exceedinglyfirm.

The turning of the barrel a quarter-turn in one direction for connectingit with the frame and a quarter-turn in the opposite direction fordisconnecting it therefrom, as above described, assumes that it as wellas the frame has suitable interrupted screw-threads which are too wellknown to require illustration or The magazine would have the same valueas a lever, however, if the barrel and frame had continuous threadsrequiring the complete rotation of the barrel.

Forlocking the breech-bolt slide, and hence the breech-bolt, intheirclosed positions I employ a safety-catch N, mounted in the web or bridgeB of the frame 13 at a point just in front of the hammer, and slightlyinclined rearward, its upper end being adapted to take into a notch Nformed transversely in the extreme rear end of the extension 0 of thebreech-bolt slide. 0, and its lower end being engaged with a spring Nsecured to the upper tang B of the gun-frame, which alsoineludes theframe B and the lower tang B.

The upper end of this catch is furnished with a rearwardly-projectingfinger N which is engaged by the hammer I, when the same is thrownforward, in such a manner as to depress the catch and, clear its upperend from the notch N in the breech-bolt slide, but the hammer depressesthe catch in the manner set forth only when in its closed position, sothat when it is half-cocked or full-cocked the breech-bolt slide andbreech-bolt are firmly held in their locked positions by the catch. henthe hammer is down, however, as it will be after the firing of the gun,it holds the catch down, so that the same does not interfere with theaction of thebreech-bolt slide in automatically throwing the hammer backto its full-cocked position. The catch thus prevents the manipulation ofthe gun except under certain conditions, which are ordinarily presentonly when the same has-been fired or the hammer let down.

The trigger O, guard O, hammer-spring O and otherinstrumentalities notset forth may be considered to be of any approved construction.

Inasmuch as the operation of the gun has been sofully set forth ,inconnection with the description of its construction I deem itunnecessary to describe its operation further.

It is apparent that in carrying out my invention some changes in theconstruction herein shown and described may be made, and I wouldtherefore have it understood that I do not limit myself to the exactconstruction herein set forth, but hold myself at liberty to make suchchanges and alterations as fairly fall within the spirit-and scope of myinvention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a breech-loading magazine gun, the combination with a frame havinga chamber formed in it and also having one of its side walls cut away toform a longitudinal slot which opens laterally into the said chamber, ofa longitudinally movable breech-bolt slide located in the said slot andmovable back and forth therein, and a breech-bolt located in the saidchamber and actuated by the said slide in longitudinal and lateralmovement, and connected at its rear end therewith, its rear end beingmoved laterally for engaging it with the frame to lock it in its closedposition and for disengaging it from the frame to unlock it, and itsforward end which is disconnected from the slide, being moved laterallyfor coupling it with and uncoupling it from the forward end of the slidewhich has longitudinal movement independent of it, substantially asdescribed.

2. In a breech-loading magazine gun, the combination with a frame having.a locking abutment at its rear end, and fixed breechbolt-operatingpoints at its forward end of a longitudinally movable breech-bolt slidemounted in the said frame, and a longitudinally and laterally movablebreech-bolt con nected with the said slide for actuation thereby, itsrear end being moved by the slide into and out of engagement with thesaid abutment, and its forward end being constructed to coact with thesaid fixed points whereby it, is moved laterally from left to right andfrom right toleft for being coupled with and uncoupled from the forwardend of the said slide, which has longitudinal movement independ ent ofit, substantially as described.

In a breech-loading magazine gun, the combination with the framethereof, of a longitudinally and laterally movable breech-bolt and alongitudinally movable breech bolt slide mounted in the said frame, anda firingpin mounted in the breech -bolt, and connected at its rear endwith the slide which moves it and hence the rear end of the breechboltlaterally, substantially as described.

4. In a breech-loading magazine gun, the combination with the framethereof, of a longitudinally and laterally movable breechbolt, alongitudinally movable breech-bolt slide mounted in the frame and havinga forwardly inclined groove in its rear end, and a firing-pin located inthe breech-bolt, and provided at its rear end with a stud entering thesaid groove, substantially as set forth, and whereby, through the mediumof the said stud and groove, the rear ends of the firing-pin andbreech-bolt are moved laterally inone direction, substantially asdescribed.

5. In a breech-loading magazine-gun, the combination with a frame,constructed at its rear end with a locking abutment, of a longitudinallyand laterally movable breech-bolt adapted at its rear end to co-act withthe said abutment, a longitudinally movable breechbolt slide mounted inthe frame, and a firingpin located in the breech-bolt and connected withthe said slide which imparts lateral movement to the rear end of the pinand hence the breech-bolt, whereby the bolt is moved out of range withthe said locking abutment of the frame, substantially as set forth.

6. In a breech-loading magazine gun, the combination with a frame, of alongitudinally movable breech-bolt slide mounted therein, and providedat its rear end with an extension having its inner end beveled, alongitudinally and laterally movable breech bolt, the rear end of whichis engaged by the said bevel, whereby the rear end of the bolt is movedlaterally into its locked position, substantially as described.

7. In a breech-loading magazine gun, the combination with a frame, of alongitudinally movable breech-bolt slide mounted therein, alongitudinally and laterally movable breechbolt, a firing-pin locatedtherein and connected at its rear end with the said slide, which isadapted at its rear end to engage directly with the bolt for moving thesame laterally, substantially as described, and whereby the bolt ismoved longitudinally by the slide, and laterally in one direction by theslide acting through the pin, and laterally in the other direction bybeing directly engaged thereby.

8. In a breech-loading magazine gun, the combination with a frame havinga locking abutment at its rear end, of a longitudinally movablebreech-bolt slide mounted therein, and having its rear end provided withan inward extension having an operating bevel, a longitudinal slot andforwardly inclined grooves, a breech-bolt, and a fi rin g-pin mountedtherein and projecting at its rear end therefrom into the said slot, andcarrying a stud entering the said grooves, substantially as described,and whereby the rear end of the bolt is moved laterally in front of thesaid abutment by the direct engagment with it of the said bevel, andwhereby also the said end of the bolt is moved laterally away from thesaid abutment by the firing-pin which is moved laterally by theco-action of the said grooves and stud when the slide is moved rearward.

J. In a breech-loading magazine gun, the combination with a frameprovided with a longitudinal guide-rib extending inward from the leftwall of its chamber, of a longitudinally and laterally movablebreech-bolt, the forward end of which is furnished with an outwardlyprojecting operating shoulder located on its left side to co-act withthe said guide rib, and with a coupling shoulder located on its rightside, and a longitudinally movable breech-bolt slide mounted in theframe, and engagingat its forward end with the coupling shoulder of thebreech-bolt when the same is moved from left to right by the action ofthe said operating shoulder and rib, the said coupling shoulder beingcleared from the forward end of the slide by the movement of the forwardend of the breech-bolt from right to left as the same reaches its fullyclosed position and engages with the receiver, substantially asdescribed.

10. In a breech-loading magazine gun, the combination with the framethereof, of a longitudinally movable breeohbolt, a carrier pivotallyhung by its rear end, and a pivotal bell-crank leverhaving its upper armextended upward through the carrier in position to be engaged by thebreech-bolt in the forward movement thereof, whereby the lever is tiltedforward with the eifect of lifting its lower arm against the carrier,which is thereby lifted, substantially as set forth.

11. In a breech-loading magazine gun, the

combination with the frame thereof, of a 1011- gitudinally movablebreech-bolt, a carrier pivotally hung by its rear end, and a bellcranklever pivotally mounted with capacity for lateral deflection, at a pointbelow the carrier through which its upper arm extends in position to beengaged by the breech-bolt when the same moves forward and back. andwhereby the lower arm of the lever is lifted against the carrier, whichis thereby raised, when the bolt is moved forward, and the said lever islaterally deflected for clearing the bolt in the rearward movementthereof, substantially as described.

12. In a breech-loading magazine gun, the combination with the framethereof, of a breech-bolt having a beveled operating finger dependingfrom its forward end, a trigger-plate mounted in the rear end of thesaid frame, a carrier pivotally connected by its rear end with the saidplate, and a bell-crank lever pivotally mounted in the forward end ofthe said plate, with capacity for lateral-deflection, and having itslower arm arranged to lift the carrier, and its upper arm extendedupward through the same in position to be engaged by the said fingerwhich engages with it and rocks the lever and lifts the carrier in theforward movement of the bolt, and

engages with it, and deflects the lever laterally in the rearwardmovement of the bolt, substantially as described.

13. In a breech-loading magazine gun, the combination with a framehaving an ejectionopening formed in one of its side walls, of a carrierlocated within the chamber formed in the said frame, and a fender formedindependently of the said carrier, set into a recess in one of the sidesthereof, pivotally attached thereto by its rear end and havingindependent vertical movement, substantially as described.

14. In a breech-loading magazine gun, the combination with the framethereof, the same having an ejection-opening formed in one of its sidewalls, of a carrier, a pivotal fender made independently of the carrier,interposed between the same and the said ejection-opening, and a springcoacting with thefender, substantially as set forth.

15. In a breech-loading magazine gun, the combination with the framethereof, the same having an ejection-opening formed in one of its sidewalls, of a longitudinally-movable breech-bolt, a breech-bolt slide, acarrier, a pivotal fender formed independently of the carrier andlocated between the same and the said opening, and a spring coactingwith the fender to assist the slide in holding the carrier in itsdepressed position when the gun is closed, substantially as described.

16. In a breech-loading magazine gun, the combination with the framethereof, of a breech-bolt located therein, a trigger plate extending atits forward end into the lower portion of the said frame, a carrierpivotally hung by its rear end in the forward end of the said triggerplate, and a lifting lever pivotally mounted in the carrier, and havingits rear end arranged to engage with the said plate, and also with aportion of the frame, whereby,when the carrier is elevated,the forwardend of the lever will rise above the floor thereof, substantially asdescribed.

17. In a breech-loading magazine gun, the combination with the framethereof, of a tubular magazine, a longitudinally movable breech-bolt, alongitudinally movable breechbolt slide mounted in the frame, andoperating the said bolt, a sliding supporting handle mounted on themagazine for operation back and forth thereon, an action-bar connectingthe said slide and handle, and a cartridge stop mounted in the frame,and connected with the action-bar for positive inward and outwardmovement thereby, substantially as described.

18. In a breech-loading magazine gun, the combination with the framethereof, of a tubular magazine, a longitudinally movable breech-bolt, alongitudinallymovable breechbolt slide mounted in the frame andoperating the said bolt, a sliding supporting handle mounted on themagazine for operation back and forth thereon, an action-bar connect ingthe said breech-bolt slide and handle, and provided at the rear end ofits inner face with a draw flange, and constructed with a longitudinalgroove, the rear end of which is curved outward to clear the saidflange; and a cartridge stop mounted in the frame, and furnished with anoutwardly projecting lateral finger entering the said groove, andcoacting therewith and with the said flange for positively moving thestop inward and outward as the slide is moved forward and back,substantially as described.

19. In a breech-loading magazine gun, the combination with the framethereof, of a longitudinally movable breech-bolt, a breechbolt slidemounted in the frame and connected with the breech-bolt for operatingthe same, a tubular magazine, a sliding supporting handle mountedthereupon, an actionbar connecting the said slide and handle, a safetycatch normally engaging with the rear end of the slide to lock the same,and hence a the breech-bolt in their closed positions, and a hammeradapted when in it is closed position to depress the said safety-catchand unlock the slide, substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN M. BROXVNING.

\Vitnesses JOHN E. RAMSDEN, KATE LINEHAN.

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